#423CCB#423CCB

#423CCB is a mid, highly saturated blue. Relative luminance 0.087; OKLCH L 46.3% C 0.212 H 276.0°. Best body text is #FFFFFF at 7.66:1 contrast (WCAG AA passes).

Color values

HEX	#423CCB
RGB	rgb(66, 60, 203)
HSL	hsl(243, 58%, 52%)
HSV	hsv(243, 70%, 80%)
CMYK	cmyk(67.5%, 70.4%, 0%, 20.4%)
CIE-LAB	lab(35.40, 46.46, -72.94)
CIE-LCH	lch(35.40, 86.48, 302.49°)
OKLab	oklab(46.28% 0.0223 -0.2107)
OKLCH	oklch(46.28% 0.212 276)
XYZ	xyz(14.6386, 8.7005, 57.3962)
Luminance	0.0870 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Blue With A Hint Of Purple

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#423CCB #C5CB3C

analogous

#3C7ECB #423CCB #893CCB

triadic

#423CCB #CB423C #3CCB42

tetradic

#423CCB #CB3C7E #C5CB3C #3CCB89

square

#423CCB #CB3C7E #C5CB3C #3CCB89

split-complementary

#423CCB #CB893C #7ECB3C

monochromatic

#211E6F #2F2A9F #423CCB #716CD8 #A09DE5

Accessibility & contrast

On white

7.66

#423CCB on #FFFFFF

AA ✓AA large ✓AAA ✓

On black

2.74

#423CCB on #000000

AA ✗AA large ✗AAA ✗

Best text color

#FFFFFF on #423CCB

7.66:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##423CCB	#FFFFFF	#000000	##FFFFFF
##423CCB	1.00	7.66	2.74	7.66
#FFFFFF	7.66	1.00	21.00	1.00
#000000	2.74	21.00	1.00	21.00
##FFFFFF	7.66	1.00	21.00	1.00

Color blindness preview

Protanopia (red-blind)

#0059CF

Deuteranopia (green-blind)

#004DC8

Tritanopia (blue-blind)

#00637F

Achromatopsia (no color)

#535353

Design tokens & code

CSS

--color: #423ccb;
/* rgb */ color: rgb(66, 60, 203);
/* oklch */ color: oklch(46.3% 0.212 276.0);

Tailwind

colors: {
  custom: {
    50: '#8873dc',
    500: '#423ccb',
    950: '#000000',
  },
}

SCSS

$custom: #423ccb;
$custom-light: #8873dc;
$custom-dark: #000000;

JSON

{
  "hex": "#423ccb",
  "rgb": {
    "r": 66,
    "g": 60,
    "b": 203
  },
  "hsl": {
    "h": 242.517,
    "s": 57.895,
    "l": 51.569
  },
  "oklch": {
    "l": 0.46282,
    "c": 0.2119,
    "h": 276
  },
  "luminance": 0.08702
}

Semantic roles & 50–950 ramp

primary

#423CCB

secondary

#CED192

accent

#E147DB

background

#F9F7FD

surface

#F1EDFB

border

#CBC8D4

text

#0D0815

muted

#7E7B83

Preview Lab

Preview with #423CCB

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →